Bismarck wm



' B. W. PETSCHE. APPARATUS FOR WASHING PULP AND FOR SEPARA'TING PULP FIBERS FROM IMPURIUES.

' AFPLICAT ION FILED MAY 19, 1910.

Patented Aug. 8,191

BISMARdK WM. PETSCHE, OF YONKERS, NEW

roan, Assmn on. TO run PEMBEE COMPANY, OF NEW YORK, 1 I. Y., A CORPORATION OF NEW YORK.

* A.PIEARATUE: FUR WASHIN G P ULP AND FOR SE PARATING PUIlP FIBERS FROM IMPUBI'IIES.

Specification 01' Letters Patent.

Patented Aug. 8, 1916.

Application filed May 19, 1910. Serial N 0. 562,208.

.To all whom it may concern Beit known that I, BISMARCK W. Pn'rsoHE, a citizen of the United States, and a resident of Yonkers, county of Westchester, and State of New York, have invented certain new anduseful Improvements in Apparatus; for Washing Pulp and for Separating Pulp Fibers from Impurities, of which the following is afull, clear, and exact specification, reference being had to the accom-' panying drawings, showing a sectional view (diagram) showing the arrangement of the component parts of my improved pulp- Washing apparatus.

My invention relates to manufacture of felted fabrics, particularly to paper, paper-1 boards, blotting and the like, and consists of the' herein shown and described apparatus for washing pulp, recovered from waste printed papers, preparatory to its being used formanufacture of such felted fabrics. The apparatus is also suitable for treating the Waste waters of each paper, papenboardand similar machines for the recovery of pulp fibet contained therein, and for carrying on the'lprocess of separating pulp fiber from pigments, s ze, filler and other impurities set forth 1n my-Il. S. Letters Patent' #955,898, granted. to me April 26, 1910, and'for other similar purposes- Referring to the drawing, illustrating diagrammatically the relative arrangement of the component featuresof such an appalower box, which'are composed of bottoms d and 03, and sides a and n; 79 and g are stationarypartitions, thelatter having combined therewith movable extensions 9'; a and f are screen's, stretched on cleats o in the boxes A. and B respectively, and extending between the sides a and partitions pfa are troughs running along the partitions 7), one in each box 'A; and B, and z are sloping boards, extending along the other sides of the partitions 77 from the screens a and f respectively to the tops of these partitions; are water-pipes connected to a pump or tank, or to any other source of water supply. and provided with perfora tions or nozzles 3 for delivery of streams of water upon the screens and over the edge central portions elf portions 03 delivered from the upon the screen it been previously filled with water to a level,

of partitions p into the troughs c. The sides n of the boxes A and B do not extend to the bottoms d thereof and the latter are extended beyond them, their extensions forming outflows, designated 70 and m respectively, the former (h) from box A into the box B, and the latter(m) from box B, into a settling tank. The parts a? of bottoms (1, located underneath the screens a and f, are composed of rigid central portions d, and of elastic or extensible strips e, joining the and the rigid portions of the bottoms (Z, so as to render the central of the bottom movable. -The supports 5' of these movable central portions (Z? are connected to an eccentric or camshaft, so that when the latter is rotated, the movable central portions d" of the boxes A and B will be reciprocated, that is, alternately raised screens a and f respectively.

The apparatus is employed for Washing or grading of pulp in a. continuous operation as follows: The pulp to be treated is beating engine or chest of the box A which has adjusted by extending the partition 9' correspondingly. The delivery of the pulp and lowered, to and from the.

uponthe screen a is continuous and the delivery of water into the apparatusthrough the pipes b and I) must also be continuous; and suflicient to maintain a continuous out flow over the top of the partitions p (or sides :1:) into the troughs c, and also over the partition 9 of the box A (through gutter in) into the box B, and from there, over the top of the partition g, into the outflow (or gutter) 12?. into the settling tank. Screen (2 is made of Wire netting, 18 to24 meshes to the inch, and will pass thep'ulped material, except such lumps as have not been sufficiently pul'ped' in the beating engine. These lumps and the like are driven ofl' of the screen a, over the top of the partition '3) into the adjoining trough 0, flowing with the water into the settling tank (not shown), by the jets of water from the nozzles or lating movement of the water, produced by the reciprocatin motions of the central portions (17 of the ottom of the box A (or of,

ill

upon tho 5" assists ninhirinlly in conrcying tho uuircriul not; pusurul llilll'fllllljll screen. a: into thn iidjoining lrou rh r, but in not concnliul to tho carrying; on of lhcprorcun in tho zippiiirulrus.

'lhc mulrriul, pusncil through the. number of tlic oorn l u, build in suspcnsion in tho wiilrr by lh upgilnlion produced by tho rc' riproroling unions of the control porlionu ul' lbr luxllom of tho! box .ll and pnsrcn u Willi tho \riilirr orcr tho top of nlrlilion 9" into lhu onrllow 1 1:, by which it is delivered irn'f of lhc non ll, where ill in mibicclcd lo ii similar trcmtnicnl; by the strrunis cl Writer, diachurgcd upon it from pipun I), unrl the undulating IHUWJIHHHIES of tho wulcr, produced by the reciprocating niuliors of rho ccnlrul portion d of tho bot tom (I of lawn ll Scrcrn f has from 1:8 to (l-lmnshcn to :ininch and will not pass my pulp libcrs of such length in: may be used in innnuluc lurc of pupor, it will, however, prim Elli shin or fibers, and the niinutcl diuin rgrnlrul impurities, lillcr, nine, purlicls'e cl ru rbou or other pigments from printnrn inli und rho like. The pulp libcrs rctuincd upon lhr ncrcrn f urc driven by tho slrrmnn of wnlncr, dinrburgud from pipim 7: and by l-lll: nniluliilirur inorcmunt of thc Writer in llml ll orrr lxhu ucrccn 21nd iiouh-d orcr rlic lop ul llui nirtiliou W Hill lhc ud oininn lruur h r urul cunrcrcd in u \ill or in u choral;

or rlirccllr lip u pupcr or bourd uiuchinc; tlua rclunc rind inuiurillim-i. or; urulcd il'roin thc Wilp. iii-r brld Hllifijlllllllfill in tho wutin' brlow the o rm f" null mrricd with il- Ulll lhc lop of p ions 51" und 5/ into tho outflow in rind from lhcro to tho willing tank, ll; is odriuziblr liu uruhu nhao the pnrtilioiw 57 rcinrwublc lo l'ucililultc l'hc dischnrnu, from l'iiuc lio linuwol' hlllil of lhc rol'uuc, like clay, :lillur and ring lilac, which, bring hoary, lhrblc in ucri]inulutc on tho bottom oi? lhc boron Jil. llllll ll; nucb hrui v rcilusc inny,

boucrcr, bu i int} l'Ull'HJVBLli to the extent 11cc wry lfor l1; c propcr opcrution oil the u'p'pu ridnu, by nu h scrapers air are mood in poplar und bourd ills for clcnning; sorcigsnn :ii'nlj'or rinrilur pur imon.

l: oluini ml my invention:

ll. slim nppurnlus for u'imhing pulp, and for nupnrul", iroinprininp l i *udinr'l box, u purlziliuu, not lburcin null; 111 thcbui'linn; :i mind purliilion, I lJUl Ull ul; and indomiinn; from i. i ol: the hon in below rho lop oi? thr lirnt ifniriiirionj on outflow from lhc box br roud the. second purl-itirm; u,

uwucu, not, uppruriinnlcly pi fnllcl to the bi low oil lhr bur, between tho first portiibion and lhu uppfltilllfi side of the box; :1, lrough, :uljolningz: tho screen but separated from il; by u will, cxtcndin nliorc tho ncrccn, iuul moons for coni evr 7 Warm into lxhc bun, obnrc llm iscrccn in ,nlrisnlns direct pulp libnrn from impuriticn,

cd toward, and upon the edge of, the wall, scpnrnting the sci-con. from the trough; subshinliully us heroin Elllfrflll and described.

All op um-urns for washing pulp, and for separating pulp fibcrn from impurities, coniprisiiur :1 box; in partition, set therein mu; cxi-zuulimg; lo the bottom; a. vertically cxlcrmibln pink 'on, not in the box beyond lilo first, and cxlcnding from the bottom of tho box to brlow tho top of the first portilion; on outflow from the box beyond the scooml pnrtition; a. ncrecn, set, approxinmlcly purullcl to the bottom of the b :1, ll: Wit-on tho 'iirst partition and.tl1c opposzri'l i side of lhc box; a, lrough, adjoining the screen butscpurnlcd friinn it by 2L M'Illl cxtending; ubovc the screen, andmezms for conveying; wulcr into the box, above the screen, in streams directed toward, and upon the edge of, tho wall, separating the scrln from the trough; substantially as herein shown and (inscribed.

An nppi'i wins for Washing pulp, and For ncpurnlingg. pulp libcrs from impurities, comprising" :1 box; :1 partition set therein hols c: ,cnding tol-hc, bottom, a, second purliriun, in tho box beyond the first and cxlcndinr; from the bottom of the box to lwlow rm lop of the first partition; on outflow lroni the box bcycmd tllc second porlilion; u scrum], sot, upproxinmtcly purullrl to the hollow of the box, bctwccn ,the lirnla purlilion and the opposite side of the Illflfli; u trough, adjoining the screen but ropurulred from it by a wall, extending l hove lilo. ncrrcnr lncuns for conveying Waller into lbo box, ubovu tho screen, in streams directand toward, and upon the edge of, the Willi, scpnrnling tho scrccn from the trough, and lllfilllfi for imparting an. undulating" motion lo the u'utcr in the box; substantially as horcin shown and dcrcribcd.

el. An sippuruliur for Washing pulp, and r for separating pulp fiber from ini 'mritics, min mising: a box, :1 purtition set therein not cxlicnilingr to tho bottom; :1 vertically 0.xlunsiblc partition. not in tho box beyond the first, and cxlcndin from the bottom of tho box; in bclow the top of the first partition: :in outflow from lhc box bcyond thc second partition; :1 srrccn. set, approximately parcomprising a. box, having a movable bottom;

posite side of the box; a trough, adjoining the screen, but separated from it by a wall extending above the screen. means for conveying water into the box, above the screen, in streams directed toward. and upon the edge of. the wall, separating the screen from the trough: and means for moving the bottom of the. box toward. and away from, the screen: substantially as herein shown and described. t i

6, An apparatus for washing pulp. and for separatiu; pulp. fiber from impurities, comprising a box .'havingi a movable bottom; a partition set therein not extendinggto the bottom: a vertically extensible partition. set in the box beyond the first. and extending tronrthe, bottom of the box to below the top of the first partition; an outflow from the box beyond the second partition; a screen, set, approximately parallel to the bottom of the. box, between the first partition and the opposite side of the box; a trough. adjoining the screen but separated from it by. a wall extending: above the screen;

means for conveying water into the box.

above the screen. in streams directed toward. and upon the edge of. the wall. separating the screen from-the trough; and means for moving the bottom of the box toward. and away l'rom, the screen; substantially as herein shown and described.

T. An apparatus for Washing pulp, and

' for separating pulp fiber from impurities.

comprising a box, a portion of the bottom of the box joined to the rcstby fiexible strips; a partition set in.' and not extending to the bottom oi the box; a second partition, set in the box beyond thi-v first. and extending from the bottom of th box to'bclow the top of the first partition: an outflow from the box beyond the second partition; a screen, set. approxiimilcly parallel to the bottom of the box, between the first partition and the opposite side of the box; a trough, adjoining the screen but separated from it by a wall extending above the sci'een; means for from the. trough: and means for reciprocating the flexibly joined portion of "the bottom of the box toward. and away from, the screen; substantially as herein shown and described. t

S. An apparatus forwashing pulp, and for separating pulp fiber from impurities, comprising a box. a portion of the bottom of the box joined to the rest by flexible strips; a partition sct therein not extending to the bottom: a vertically extensible partition. set in the box beyond the first. and extending from the bottom of the box to below the top of the first partition: an outflow from the box beyondthe second partiti n: "a screen, set approximately parallel to the imttom of the box; between the. first partition andthe opposite side of the box: a trough, adjoining the/screen but separated from it. by a wall extending above the screen: means for conveying water into the box above the screen, in streams directed toward, and upon the edge, of, the wall, separating the screen i roin the trough: and means for moving the fiexibly joined portion of the. bottom of the box toward, and away from. tl'ie'screen; substain tially as herein shown and described.

9. in an apparatus tor washing pulp, and

for separating pulp fiber from impurities,

the"combination comprising a box, having a movable bottom with a. screen, set in the box,

approximately parallel to, and above, the t bottom thereof; a trough, adjoining the screen, a; wall extending above it, between the screen and the trough; means for cone in water uaon the screen in streams directed toward, and upon the edge of, the

wall, separating the screen from the trough;

of means t'or movingvthe bottom of the box toward. and away trom,thescreen, substantially as herein shown and described.

BISMARCK WM. PETSCHE. lVitnesses:

Fnnz Mtisnn, ALFONSE L. SPUGEL. 

